Hair accessory



FIG. 1 is a front and top perspective view of a hair accessory showing our new design;

FIG. 2 is a top view thereof;

FIG. 3 is a front side view thereof, the rear side view being a mirror image thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a left side view thereof; and,

FIG. 6 is a right side view thereof.

The broken lines show environmental matter only and form no part of the claimed design. 

CLAIM The ornamental design for a hair accessory, as shown. 